Where fire resistant plasterboard and suspended ceilings have either recessed lights of downlights these must be protected by a suitable cover that maintains the ceiling's fire stopping integrity as well as allowing ventilation to the light source. 

Firehoods and loftcaps are simple to install, whilst meeting the requirements of IEE Wiring Regulations 17th Edition and Building Regulations in terms of fire stopping of penetrations in fire protected ceilings. 

Key Points:

• Reduces fire risk by keeping combustibles away from the hot downlight
• Save energy by limiting heat loss into the loft
• Limits drafts, improves air tightness and reduces moist air flow

Features:
• Rigid construction capable of supporting loft insulation material
• Allows continuous insulation over lights
• Lightweight and easy to install - from above the ceiling
• No screws or drilling required - can be fitted in seconds
• Cable entry slots can easily be made by stabbing the side of the cover with a bradawl or pencil
• Suitable for use in plasterboard, ceiling tile and other noncombustible ceilings
• For use with downlights with a maximum power of 50W
• Non toxic and maintenance free

Test Data
The ALC274 is tested and fully complies with:
Fire tested at Chiltern International Fire in a 1 hour plasterboard & timber ceiling construction achieving in excess of 60 minutes duration when tested to BS 476: Pt.21. Certificate No: CHILT/IF06004
Thermally tested by the Lighting Association as follows:
Thermal test BS EN 60598 Section 12.4. Report number – L7159
Also is an easy way of achieving the requirement for continuous loft insulation documented in Building Regulations Approved Document L.